8 files changed, 104 insertions, 0 deletions
diff --git a/add/.gitignore b/add/.gitignore
new file mode 100644
index 0000000..e629269
--- /dev/null
+++ b/add/.gitignore
@@ -0,0 +1,18 @@
+
+# Created by https://www.toptal.com/developers/gitignore/api/rust
+# Edit at https://www.toptal.com/developers/gitignore?templates=rust
+
+### Rust ###
+# Generated by Cargo
+# will have compiled files and executables
+/target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# End of https://www.toptal.com/developers/gitignore/api/rust
+
diff --git a/add/Cargo.toml b/add/Cargo.toml
new file mode 100644
index 0000000..37b9688
--- /dev/null
+++ b/add/Cargo.toml
@@ -0,0 +1,7 @@
+[workspace]
+
+members = [
+    "adder",
+    "add-one",
+]
+
diff --git a/add/add-one/.gitignore b/add/add-one/.gitignore
new file mode 100644
index 0000000..e629269
--- /dev/null
+++ b/add/add-one/.gitignore
@@ -0,0 +1,18 @@
+
+# Created by https://www.toptal.com/developers/gitignore/api/rust
+# Edit at https://www.toptal.com/developers/gitignore?templates=rust
+
+### Rust ###
+# Generated by Cargo
+# will have compiled files and executables
+/target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# End of https://www.toptal.com/developers/gitignore/api/rust
+
diff --git a/add/add-one/Cargo.toml b/add/add-one/Cargo.toml
new file mode 100644
index 0000000..9d35934
--- /dev/null
+++ b/add/add-one/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "add-one"
+version = "0.1.0"
+authors = ["Jordan Gong <jordan.gong@protonmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+rand = "0.5.5"
diff --git a/add/add-one/src/lib.rs b/add/add-one/src/lib.rs
new file mode 100644
index 0000000..40ceb12
--- /dev/null
+++ b/add/add-one/src/lib.rs
@@ -0,0 +1,13 @@
+pub fn add_one(x: i32) -> i32 {
+    x + 1
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        assert_eq!(3, add_one(2));
+    }
+}
diff --git a/add/adder/.gitignore b/add/adder/.gitignore
new file mode 100644
index 0000000..e629269
--- /dev/null
+++ b/add/adder/.gitignore
@@ -0,0 +1,18 @@
+
+# Created by https://www.toptal.com/developers/gitignore/api/rust
+# Edit at https://www.toptal.com/developers/gitignore?templates=rust
+
+### Rust ###
+# Generated by Cargo
+# will have compiled files and executables
+/target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# End of https://www.toptal.com/developers/gitignore/api/rust
+
diff --git a/add/adder/Cargo.toml b/add/adder/Cargo.toml
new file mode 100644
index 0000000..91118cb
--- /dev/null
+++ b/add/adder/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "adder"
+version = "0.1.0"
+authors = ["Jordan Gong <jordan.gong@protonmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+add-one = { path = "../add-one" }
diff --git a/add/adder/src/main.rs b/add/adder/src/main.rs
new file mode 100644
index 0000000..7deb796
--- /dev/null
+++ b/add/adder/src/main.rs
@@ -0,0 +1,10 @@
+use add_one;
+
+fn main() {
+    let num = 10;
+    println!(
+        "Hello, world! {} plus one is {}!",
+        num,
+        add_one::add_one(num)
+    );
+}